SPECIAL REPAIR TO ROOF TREATMENT OF CERTAIN OTM BUILDINGS AT AF STN ADAMPUR

M&L for PCC (1:2:4) type B-1 using 20 mm graded crushed stone aggregate, laid to slope as directed by Engineer in Charge over RCC roofs as padding, complete all as specified and directed.

M&L for Rendering 15 mm thick (Average thickness) rendering on roof surface including flashings and junction of parapets etc., finished even and fair in cement mortar (1:3), using water proofing compound as recommended by manufacturers after brushing cement slurry @ 1.20 kg/Sqm, complete all as specified and directed. NOTE: Supply only WPC will be measured & paid for separately under respective item of BoQ.

M&L for Rendering 15 mm thick on fair faces of brick work or concrete surfaces, finished even and fair on walls in cement mortar (1:4), complete all as specified and directed.

M&L for APP based polymeric membrane laid on primed roofs & flashing by forced application using Butane torch and sealing all joints on primed surface by applying hot blown industrial grade bitumen @ 85/25 @ 1.20 kg/Sqm over a coat of bitumenous primer @ 0.40 litre per square metre over cleaned RCC/plastered roof surfaces & flashings complete, all as specified and directed.

M&L for 40 mm thick brick tiles are bedded over 15 mm thick cement mortar (1:4), and joints grouted flush in cement mortar (1:3) mixed with 5% of crude oil by weight of cement on APP membrane complete all as specified and directed.

M&L for Making benching with PCC (1:2:4) type B-0 (using water proofing compound) along side walls adjoining to roofs, in CONCAVE SHAPE, complete all as specified and directed. NOTE: (i) WPC will be measured and paid for separately under respective item of BoQ. (ii) For Guarantee of Water Proofing Treatment refer PS clause 11.5.

Supply only water proofing compound, ISI marked, complete all as specified and directed.

S&F, uPVC pipes, 110 mm external dia pipe, type-A, ISI marked (IS:13592) single socketed in any length with or without rubber ring joints, fixed to wall with PVC brackets as SWR / rain water pipes, IN REPAIR, complete all as specified and directed.

S&F, uPVC/PVC bends any radius, complete all as specified. suitable for uPVC soil waste discharge pipes 110 mm external dia complete all as specified and directed.

Disconnecting existing tanks of capacity exceeding 500 litre but not exceeding 1000 litre, setting aside (or lowering if required) for cleaning/roof repair etc. and hoisting, reconnecting and re-fixing on existing location after necessary cleaning by removing all scale and dirt etc. including cleaning mouth of circulating service pipes also making all necessary connection complete all as specified and directed.

S&F, Ball brass valves, high pressure, with rod & high density plastic ball complete screwed for iron pipe or brass ferrule and fixed, suitable for 20 mm bore GI pipe, IN REPAIR, complete all as specified and directed.

Taking up or down 20mm bore steel tubing and connection including cleaning for refixing or removal to store complete all as specified and directed.

Taking up or down 25mm bore steel tubing and connection including cleaning for refixing or removal to store complete all as specified and directed.

S&F, 20mm bore Steel tubes medium grade galvanized with all fittings and fixed to walls and ceilings or laid in floors complete all as specified and directed.

S&F, 25mm bore Steel tubes medium grade galvanized with all fittings and fixed to walls and ceilings or laid in floors complete all as specified and directed.

M&L for plain aluminium sheeting 0.50mm thick Alloy 31000 H4 in stepped flashing (measured as the minimum rectangle from which the pieces can be cut), complete all as specified and directed.

M&L for Two coats of exterior acrylic emulsion paint over a coat of exterior (water based) primer on new plastered surfaces of wall, in disruptive/camouflaging pattern of four shades including preparation of surfaces for height n.exc 8.5m, complete all as specified and directed.

M&L for Two coats of exterior acrylic emulsion paint over a coat of exterior (water based) primer on brick pitching surfaces of roof and the like, in disruptive/camouflaging pattern of four shades including preparation of surfaces for height n.exc 8.5m, complete all as specified and directed.

M&L for Seamless calcium silicate ceiling 12mm thick made out of 1800 x 1200 mm size board of siliceous and calcareous material reinforced with cellulose fibre fixed to the ceiling section with 25 mm long self drilling and tapping screws having phillips head with under head cutter at 200 mm centre to centre, including finshing the joint of face board with specially formulated jointing compound and 48 mm wide fibre tape to provide seam less finish (Frame work for ceiling shall be measured and paid separately) with and including two coats of interior acrylic distemper/oil bound distemper over a coat of putty filling on new ceiling surface including preparation of surfaces, complete all as specified and directed.

M& L for Gl frame work for seamless ceiling comprising of Gl perimeter channnel 0.55 mm thick with two unequal flanges of 20 and 30 mm and web of 27 mm fixed to surrounding wall using nylon sleeves and screws at 450 mm centre to centre/intermediate channel 0.9 mm thick having two equal flanges of 15 mm each and web of 45 mm suspended from soffit at approx 900 mm centre to centre with Gl cleat and steel expansion fasteners with and including ceiling section (not exc 1.2 m length) of 0.55 mm thickness having kurled web of 50 mm and flange of 26 mm each with lips of 10.5 mm fixed to the intermediate channel with connecting clips across the intermediate channel at 457 mm centre to centre , complete all as specified and directed.

Taking down cement plaster of any description on brick walls or concrete surfaces etc including raking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed.

Demolition of mud phuska in roofs, of thickness not more than 200 mm including plaster and leeping plaster all as specified.

Dismantlig brick tiles in roof laid dry and pointed in cement mortar all as specified and directed.

Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided all as specified and directed.

Demolition of wall and ceiling boards (fibre, pulp, gypsum, POP, insulation, etc.) or insulation boards/slabs/blankets, any thickness, including cover fillets and metal frame work complete all as specified and directed.

Notes: Amount of credit for retrieved materials is mentioned in tender documents in pdf form which will be deducted while acceptance of tender offline.

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